Food Restriction by Doctor Need Help with Food Choices

Hi everyone,

For the last few weeks I've had pretty bad stomach aches and the past few days its been hurting insanely bad every single time I eat, no matter what it is. I went to the doctor today and he thinks I either have gastritis or a stomach ulcer. Either way, the treatment is Prilosec. He also said that for the next week I should cut out foods from my diet that normally make stomach problems worse.
For the next week I can't eat:
Tomato products
Chocolate
Caffeine
Dairy
Spicy Foods

I can deal with the chocolate and caffeine and spicy foods, but I eat tomato products and cheese every single day. I also should mention that I don't eat red meat or poultry because it also makes me feel ill.

My question is, what can I eat?

I can think of basic things to eat, like pita and hummus, omelettes, sauteed shrimp, but I'd like some suggestions for some foods. I was thinking of looking up vegan recipes, because I am basically vegan + seafood and eggs.